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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Loop Optimizer Problems"
href="http://llvm.org/bugs/show_bug.cgi?id=15522">15522</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Loop Optimizer Problems
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>8181919@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>#include <stdio.h>
#include <stdlib.h>
int main()
{
long buf[2];
long *pvalue = &buf[0];
long *pj = &buf[1];
long *pi = &buf[2];
for(*pj=0; *pj<1000000; (*pj)++)
{
*pvalue = 0;
for(*pi=0; *pi<1000; (*pi)++)
{
*pvalue += (*pi)+1;
}
}
printf("%ld\n", *pvalue);
}
when I compile it with:clang main.c -O3
the result is 0</pre>
</div>
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